Description:- Zinc sulphide is a inorganic compound with the chemical formula of ZnS. This is the main form of zinc found in nature, where it mainly occurs as the mineral sphalerite.It is widely used as a pigment. In its dense synthetic form, zinc sulfide can be transparent, and it is used as a window for visible optics and infrared optics. Application:- Zinc Sulphide is used as: Luminescent material Optical material Pigment: Semiconductor properties.